diff --git a/pkgs/development/tools/poetry2nix/poetry2nix/pkgs/poetry/default.nix b/pkgs/development/tools/poetry2nix/poetry2nix/pkgs/poetry/default.nix
index d175bfe01f30..da0e6e1683f3 100644
--- a/pkgs/development/tools/poetry2nix/poetry2nix/pkgs/poetry/default.nix
+++ b/pkgs/development/tools/poetry2nix/poetry2nix/pkgs/poetry/default.nix
@@ -52,5 +52,8 @@ poetry2nix.mkPoetryApplication {
   meta = with lib; {
     inherit (python.meta) platforms;
     maintainers = with maintainers; [ adisbladis jakewaksbaum ];
+    knownVulnerabilities = [
+      "CVE-2022-42966"  # cleo version in poetry.lock is vulnerable
+    ];
   };
 }